Enhanced group velocity in metamaterials
Enhanced group velocity in metamaterials
复制标题
增强超材料的群速度
DOI:
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发表时间:
2004
期刊:
影响因子:
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通讯作者:
P. S. University
中科院分区:
文献类型:
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作者:
T. Mackay;A. L. U. O. Edinburgh;P. S. University
The Bruggeman formalism is implemented to estimate the refractive index of an isotropic, dielectric, homogenized composite medium (HCM). Invoking the well-known Hashin?Shtrikman bounds, we demonstrate that the group velocity in certain HCMs can exceed the group velocities in their component materials. Such HCMs should therefore be considered as metamaterials.